Bharat Ratna Jawaharlal Nehru (1889 - May 27, 1964), was a leader of the socialist wing of the Indian National Congress during and after India's fight for independence from the British Empire. He became the first Prime Minister of India when India became a dominion in 1947 and remained Prime Minister until his death in 1964.
His only daughter, Indira Gandhi, went on to become Prime Minister in 1966. Nehru had written a series of letters to his daughter during 1930-1934, when he was jailed. The letters were later compiled into a book called The Glimpses of World History.
Nehru's famous speech on the eve of Indian Independence, "Tryst with Destiny[?]", can be found here.
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